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New rifle/New load data 270 WSM.

 
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  #1  
Old 07-13-2013, 08:59 AM
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New rifle/New load data 270 WSM.

Hello from the Deep South. I have been reloading now for about 6 years and I cut my teeth on a Browning A-bolt 270 WSM. It's been one crazy ride since with different calibers and rifles looking for one hole accuracy. After a couple of years I finally realized that the little buck head on the trigger guard did nothing for accuracy and I traded in the Browning for an indian head in 308. I really liked the 270 WSM though and now I've come full circle with a new Savage Model 11 FCNS. I'll be toping it with a Vortex Viper HS 4-16x50. I plan on using 140 Nosler Accubonds as my main hunting bullet and I have Magpro, 780 Supreme, IMR4350, and H4350 on had. Any thoughts or comments on this set up would be appreciated. Any pet loads out there?
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  #2  
Old 07-13-2013, 01:36 PM
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Re: New rifle/New load data 270 WSM.

I have shot a 270WSM for over ten years and have used many different powder and bullet combinations. One of my first loads that produced great results in my Winchester Model 70 was 140 grain Accubond and 60.5 grains of IMR-4350 in Norma cases with WLRM primers. That load has shot a 1.5 inch group at 300 yards. I have shot it at 100 yards many times with .3 to .5 inch groups.

I wanted to get a little more velocity so I have tried RL-22 with the 140 Accubonds and I was able to get more velocity and close to the same accuracy. In the last few months I have started working with Retumbo and the same bullets. The Hodgdon web site show the max with Retumbo to be 71 grains. They also show that 780 Supreme produces the higher velocity.

I have also shot Magpro which produced great velocity but not great accuracy. You have some work to do developing the best load for your gun. My best load may not be the one that works best for you, but with the powders that you listed you should be able to get the results that you are looking for.
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Old 07-13-2013, 07:24 PM
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Re: New rifle/New load data 270 WSM.

Yes I do, and I'm looking forward to it. The ballistics are off the chart for this caliber. For a hunting rifle it's tough to beat. According to the ballistics calculator I can zero at 250 yards and only be 2" high at 100 yards and 3" low at 300 yards.
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Old 07-13-2013, 07:51 PM
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Re: New rifle/New load data 270 WSM.

Get some 165/175 gr Matrix VLDs (.277 Caliber Rifle Bullets Built for Accuracy | Matrix Ballistics) and stretch it's full potential.

Rhian will be here shortly!

ADDED: Winchester's .270 WSM Is My Next Rifle Caliber
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  #5  
Old 07-13-2013, 09:19 PM
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Re: New rifle/New load data 270 WSM.

Quote:
Originally Posted by FEENIX View Post
Get some 165/175 gr Matrix VLDs (.277 Caliber Rifle Bullets Built for Accuracy | Matrix Ballistics) and stretch it's full potential.

Rhian will be here shortly!

ADDED: Winchester's .270 WSM Is My Next Rifle Caliber
I gotta get me some of them, will the 165's stabilize in a 1in10 twist? Also where can I get load data?
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  #6  
Old 07-13-2013, 09:53 PM
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Re: New rifle/New load data 270 WSM.

With the Savage you'll need to verify your twist rate, earlier one's are 1-11 and you'll be having to sling 140's with a 1-10 you'll be good to 150gr for sure but being from the deep south you may not have enough elevation to stabilize the 165 Matrix which is unfortunate because the 160+gr bullets is where the 270 WSM really starts shining!!

I use a lot of Retumbo in mine but I'm set up with a long barrel and throat for launching the 165's. My first barrel was a 1-11 and I shot a lot of 140 Accubonds and 140 Bergers, I also shot a pile of 150 Ballistic tips which I still load in it when I spin that barrel on. I use the Retumbo for everything 140gr and up and R17 for lighter bullets like the 110 TTSX or Vmax for short range varminting.
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Old 07-14-2013, 11:10 AM
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Re: New rifle/New load data 270 WSM.

Quote:
Originally Posted by bigngreen View Post
With the Savage you'll need to verify your twist rate, earlier one's are 1-11 and you'll be having to sling 140's with a 1-10 you'll be good to 150gr for sure but being from the deep south you may not have enough elevation to stabilize the 165 Matrix which is unfortunate because the 160+gr bullets is where the 270 WSM really starts shining!!

I use a lot of Retumbo in mine but I'm set up with a long barrel and throat for launching the 165's. My first barrel was a 1-11 and I shot a lot of 140 Accubonds and 140 Bergers, I also shot a pile of 150 Ballistic tips which I still load in it when I spin that barrel on. I use the Retumbo for everything 140gr and up and R17 for lighter bullets like the 110 TTSX or Vmax for short range varminting.
Rhian,

I vaguely remember an earlier thread that an LRH member was able to stabilize the 165 in 1:10 .270 Win at sea level.

Ed

ADDED: Found a partial reference on #17 270 WSM 165gr VLD load help, but not the one I was referring to.
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